On 08/09/2015 00:07, Lester Caine wrote:
On 07/09/15 23:16, Dave F. wrote:
I'm not sure there's been a discussion as you've mostly ignored the
basic comment made - it it's deleted in the real world it gets deleted
in OSM.
If there is still a trace of anything related to something being deleted
... it gets it's tags modified. You only remove it completely when/if it
is replaced by an alternate structure. A forest may well get felled for
timber, become open land until a new crop is finally established. Just
as in some cases tracks have been lifted on a viaduct or cutting but the
railway use for that land is still documented.
I don't believe anyone's advocating the removal of existing entities.
In your viaduct case above, keep the viaduct entity, remove the
railway=abandoned tag, use the historical tag to describe the past of
the viaduct (which exists) but don't use it to describe the railway
(which doesn't).
One of the problems we
had was people removing the way which was actually another structure
such as a viaduct and that was removed as well. The request was for
people NOT to remove something if they did not understand it's reason
for existing. Certainly some of the 'automated' editing of material
without any personal intervention is not acceptable.
This is a separate issue & not a valid reason to encourage the addition
of non-existing entities or their removal.
But we still need a proper way to move perfectly valid 'old' data to an
alternative if that is what the majority want ... I just happen to think
that this is the wrong way of managing material that NEEDS a substantial
amount of the existing live data to be able to manage it's complete
display so one has to now manage two parallel versions of the same data
:(
Unsure why you think that. If it doesn't exist it gets remove from OSM &
if someone wishes to preserve it, they move it to a separate database -
The viaduct remains in OSM, the railway line is transferred to OHM (or
wherever).
OHM can only work if it is a compete copy of the current visible
data,
I'm not understanding why you think that. It's possible to overlay two
separate databases.
'It get deleted' is the very history that someone has spent a
lot of time previously documenting.
That someone has put time & effort into adding something is not a valid
reason for keeping it if it's been removed. I've deleted my own data
which to hours to add after it didn't exist in the real world. I found
it mildly annoying, but had to be done.
Dave F.
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